Public CSLB records

Irwin Well Drilling INC, C-57 Well Drilling Contractor in Fulton, CA

License #891725·Corporation·Fulton, Sonoma County
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Summary

Irwin Well Drilling INC operating as a corporation holds an active California contractor license (CSLB #891725), valid through Feb 28, 2027. First issued in 2007, the license has been on the CSLB roster for 19 years. It carries a single CSLB classification: C-57 — Well Drilling Contractor. Records show an active surety bond on file with Hudson Insurance Company and a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active. The business is based in Fulton, in Sonoma County, California.

Business Information
Address
3801 Bisordi Ln
Fulton, CA 95439
License Details & Classifications
License Number
891725
Issued
Feb 27, 2007
Status
CLEAR
Expires
Feb 28, 2027
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Hudson Insurance Company
Bond Number
30146731
Effective
Feb 24, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
State Compensation Insurance Fund
Policy Number
9261367
Effective
Sep 25, 2024
Expires
Sep 25, 2026
Cancelled
May 18, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • Workers' comp cancelled
License StatusActive
Contractor BondOn file
Workers' CompensationInactive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Irwin Well Drilling INC licensed in California?

Yes. Irwin Well Drilling INC holds California Contractors State License Board license number 891725, which is active and in good standing. The license was first issued on February 27, 2007. It is valid through February 28, 2027.

What does Irwin Well Drilling INC specialize in?

Irwin Well Drilling INC is licensed for one CSLB classification: C-57 Well Drilling Contractor.

Where is Irwin Well Drilling INC headquartered?

Irwin Well Drilling INC is headquartered at 3801 Bisordi Ln, Fulton, CA 95439, in Sonoma County, California.

Does Irwin Well Drilling INC have an active surety bond on file with CSLB?

Yes. Irwin Well Drilling INC has an active California contractor surety bond filed with Hudson Insurance Company.

Does Irwin Well Drilling INC carry workers' compensation coverage?

Irwin Well Drilling INC has a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active.

How do I verify Irwin Well Drilling INC's contractor license?

You can verify Irwin Well Drilling INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=891725.

Activity Timeline
  1. License issuedFeb 27, 2007
  2. WC coverage startsSep 25, 2024
  3. Bond activeFeb 24, 2025
  4. WC cancelledMay 18, 2026
  5. WC expiresSep 25, 2026
  6. License expiresFeb 28, 2027
Other contractors in Sonoma County
California lien & payment resources

Working a California job with Irwin Well Drilling INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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